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Flymaster GPS M User Manual v. 1.0
Vario acoustics
The Vario Acoustics settings menu option allows the user to change vario sound related
parameters. The user can change the climbing, and sinking rate sound through the respective
threshold values. These thresholds correspond to the climbing and sinking rates at which the sound
activates. The user can also define in the the Acoustic Thresholds option the sink alarm and the
sound volume of is the GPS M.
Sink Threshold -
The Sink Threshold is the rate of descent at which the vario will emit a low
frequency sound. Contrary to the climb sound the sink sound is continuous. The deeper the sink
rate the lower the sound frequency. Default value for this parameter is -2 m/s, we suggest setting
a value lower than the natural sink rate of the glider when flying with speed bar in still air.
Climb Threshold -
The Climb Threshold defines the rate of climb at which the vario will start
beeping. The frequency of the first beep is defined trough the Base Frequency parameter, and
steadily increases according the Increments parameter value.
The default value for Climb Threshold is 0.1m/s. This means that beeping starts once the
instantaneous vario value goes above 0.1m/s.
Sink Alarm -
The Sink Alarm defines a vertical speed value at which a sound (alarm siren)
starts to be produced. For example, if the Sink Alarm is set to -10m/s, then if the instantaneous
vario goes below -
10m/s, and alarm will be ˝red. This alarm can be used to identify high vertical
speeds, as for example, in a spiral dive. The Sink Alarm parameter can vary from 0 to -25m/s. Set
the Sink Alarm to OFF to disable the alarm.
